Clinical trials
Primary Breast Cancer clinical trials
Below are recruiting primary breast cancer clinical trials, each written for real people, not researchers. We’re tracking 711 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06957886RecruitingPhase 3
Study of BL-M07D1 vs chemo for HER2-low breast cancer
This trial tests a new drug, BL-M07D1, against standard chemotherapy for people with HER2-low breast cancer that has spread or come back. It aims to find which treatment works better.
Guangzhou, GuangdongAges 18–75 - NCT06891833RecruitingPhase 2/Phase 3
New drug combo for HER2-positive breast cancer before surgery
This trial tests a new targeted drug (BL-M07D1) with or without another drug called pertuzumab, compared to a standard chemotherapy plus two targeted drugs, before surgery for HER2-positive breast cancer. The goal is to see if the new combination works better at shrinking tumors before surgery.
Bengbu, AnhuiAges 18–75 - NCT06845319RecruitingPhase 2
Chemo-immunotherapy before surgery for triple-negative breast cancer
This trial tests a new combination of chemotherapy and immunotherapy that avoids a class of drugs called anthracyclines, which can be hard on the heart. The goal is to shrink tumors before surgery for people with triple-negative or low-hormone-receptor breast cancer.
Charleston, South CarolinaAges 18 years+ - NCT06827613RecruitingPhase 1/Phase 2
Study of invikafusp alfa plus sacituzumab govitecan for advanced solid tumors
This trial tests a new drug combination for people with advanced breast cancer (triple-negative or hormone receptor-positive). The goal is to see if the combination helps shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT06732323RecruitingPhase 3
Study of ESG401 for triple-negative breast cancer that has spread
This trial tests a new drug, ESG401, for people with triple-negative breast cancer that has come back or spread and cannot be removed by surgery. It compares ESG401 to standard chemotherapy options to see which works better.
BeijingAges 18 years+ - NCT06559540RecruitingPhase 2
Compare short radiation courses for node-positive breast cancer
This study compares two shorter courses of radiation therapy for women with node-positive breast cancer. It aims to see if an ultra-short course is as safe and effective as the slightly longer short course.
St Louis, MissouriAges 18 years+ - NCT06471205RecruitingPhase 2
Study of BL-B01D1 plus immunotherapy for advanced triple-negative breast cancer
This study tests a new drug combination (BL-B01D1 plus an immunotherapy) for people with advanced triple-negative breast cancer who have not had prior treatment for their advanced disease. The goal is to see if the combination works better at shrinking or controlling the cancer.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT06167694RecruitingPhase 1/Phase 2
Study of HRS-8080 and Dalpiciclib for advanced breast cancer
This trial tests a new combination of two drugs (HRS-8080 and Dalpiciclib) for women with advanced breast cancer that cannot be removed by surgery. It may be an option if you have already tried hormone therapy or are starting advanced treatment for the first time.
Beijing, Beijing MunicipalityAges 18–75 - NCT06103864RecruitingPhase 3
Study of Dato-DXd with or without durvalumab for advanced triple-negative breast cancer
This trial is testing whether a new drug combination (Dato-DXd with or without durvalumab) works better than standard chemotherapy plus pembrolizumab for people with a certain type of advanced triple-negative breast cancer that has a protein called PD-L1. The study aims to find a more effective treatment option for this specific group.
Daphne, AlabamaAges 18 years+ - NCT05890677Recruiting
Surgery versus conservative care for chronic breast-related arm swelling
This trial compares microsurgery to standard conservative therapy for long-lasting arm swelling caused by prior breast cancer. It may help people who still have swelling despite months of decongestive treatment by improving quality of life.
New Haven, ConnecticutAges 18 years+ - NCT05306041RecruitingPhase 2
Pre-surgery hormone therapy with or without PI3K inhibitor
This trial tests whether giving hormone-blocking treatment before surgery works better when combined with an added targeted drug for certain breast cancers. It may help shrink the tumor and improve outcomes for people whose tumors have specific hormone and genetic features.
Essen, North Rhine-WestphaliaAges 18 years+ - NCT04852887RecruitingPhase 3
Testing shorter breast radiation after low-risk hormone breast cancer
This Phase 3 trial studies whether “less intense” radiation can work as well as standard radiation for certain early-stage hormone receptor–positive, HER2-negative breast cancers that have a low Oncotype DX score. It may help reduce treatment burden while keeping cancer control strong.
Birmingham, AlabamaAges 50–70 - NCT04751435Recruiting
Genetic testing education for cancer patients of diverse backgrounds
This study tests new educational materials about genetic testing for cancer patients. It aims to find the best ways to explain genetic testing to people from different backgrounds, especially Black, Latino, and non-Latino non-Black communities.
Brooklyn, New YorkAges 18 years+ - NCT05341492RecruitingEarly Phase 1
CAR-T therapy for EGFR/B7H3-positive lung and triple-negative breast cancer
This early-phase trial tests CAR-T cells designed to find and attack tumors that show EGFR or B7H3 markers. It may help people with advanced lung cancer or triple-negative breast cancer after standard treatments.
Guangzhou, GuangdongAges 18–75 - NCT03144648Recruiting
Study of breast cancer subtypes in premenopausal women in Latin America
This study looks at different biological “subtypes” of breast cancer in women who are still having periods. It helps researchers understand the cancer type and may guide more personalized care in the future.
BarretosAges 20–45 - NCT06778863RecruitingPhase 1
A study of CLSP-1025 for adults with certain solid tumors
This trial tests a new drug called CLSP-1025 for people with advanced solid tumors that have a specific change in the p53 gene (R175H). The drug targets this change to help fight the cancer.
Scottsdale, ArizonaAges 18 years+ - NCT06358573RecruitingPhase 2
Injecting INT230-6 then immunochemo before surgery for early TNBC
This trial tests a two-step approach: first, an injection of the drug INT230-6 directly into the breast tumor, followed by a combination of immunotherapy and chemotherapy before surgery. The goal is to see if this sequence can shrink or eliminate the cancer more effectively, potentially allowing for a less extensive surgery.
LyonAges 18 years+ - NCT05236686Recruiting
Surgery to remove upper abdomen lymph nodes for ovarian cancer
This trial studies whether removing lymph nodes in the upper abdomen (hepatoceliac lymph nodes) improves outcomes for people with stage III or IV ovarian, fallopian tube, or primary peritoneal cancer that has spread to those lymph nodes. It also looks at how this surgery works for people with certain types of relapse, often alongside chemotherapy.
ShanghaiAges 18–75 - NCT05281471RecruitingPhase 3
Tested drug for platinum-resistant ovarian cancer with bevacizumab
This Phase 3 trial tests a treatment made of an investigational gene-based drug plus standard “platinum” chemotherapy and bevacizumab, compared with standard chemotherapy and bevacizumab. It’s for ovarian/fallopian tube/primary peritoneal cancers that have not responded to platinum chemotherapy or came back quickly.
Mobile, AlabamaAges 18 years+ - NCT07001241RecruitingPhase 2
Telehealth exercise for fatigue in rural cancer survivors
This study tests a 12-week home exercise program delivered via video calls, designed to help reduce fatigue and improve physical function in people who have finished treatment for breast or prostate cancer and live in rural areas.
Aurora, ColoradoAges 18–89 - NCT05704829RecruitingPhase 2
Trastuzumab-deruxtecan before surgery for HER2-positive early breast cancer
This trial compares giving trastuzumab-deruxtecan before surgery versus standard chemotherapy plus trastuzumab and pertuzumab. It aims to see which approach works better to shrink or control HER2-positive early breast cancer and improve outcomes.
Baden-Baden, Baden-WurttembergAges 18 years+ - NCT03646955Recruiting
Partial breast radiation versus no radiation after lumpectomy
This trial compares giving radiation only to part of the breast versus not giving radiation at all after breast-conserving surgery. It’s meant for women with early, hormone-driven breast cancer to see if skipping radiation can be safe and reduce treatment burden.
SantiagoAges 60 years+ - NCT06830889RecruitingPhase 3
BL-M07D1 vs T-DM1 for HER2-positive breast cancer after neoadjuvant therapy
This trial tests whether a new drug called BL-M07D1 works better than an existing drug, T-DM1, for people with HER2-positive breast cancer who still have cancer cells after initial treatment (neoadjuvant therapy). The goal is to prevent the cancer from coming back.
Nanjing, JiangsuAges 18–75 - NCT05564377RecruitingPhase 2
Find targeted cancer treatments using genetic testing
This study matches people with advanced solid tumors to targeted treatment plans based on genetic testing. It also requires tumor sample testing to help doctors choose the most promising therapy for your specific tumor changes.
Birmingham, AlabamaAges Any age
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Common questions
- Are there clinical trials for primary breast cancer?
- Yes. Clin2 currently lists 711 recruiting primary breast cancer studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a primary breast cancer trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a primary breast cancer trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.